We’re Hiring

We are looking for a Locksmith or Security Engineer who has experience with Access Control, CCTV or Automated Gates. Please send your CV to hq@sissecurity.co.uk to find out more.

Our Goals & Values

To provide a high quality security installation service across Central and Greater London including the installation and maintenance of a wide range of leading security and access systems. We have a dedicated team of individuals offering a wealth of experience and versatility with direct access to up to date technical support from our suppliers. We strive to:

  • Provide exemplary customer service, with an emphasis on informative customer communication, from initial enquiry to after service care.
  • Maintain rapport with our suppliers, to enhance business relationships, so that rewards can be passed on to our customers.
  • Keep good working relationships with our staff, encouraging a sense of achievement and job satisfaction.
  • Supply quality products and workmanship, enabling us to provide lasting guarantees and valuable maintenance options.


Company History

We are a family run business founded in 1991. Going from strength to strength, building new business relationships whilst maintaining existing customers, the Company has seen many changes.

At first, physical security in the form of high security locks, grilles, gates and doors was at the forefront of the business, but as times have changed, electronic security has become more widely available and the Company embraced this to offer electronic access control and surveillance systems alongside the more traditional security solutions.


Management Team

Bradley Mak is our Managing Director after starting his career as an apprentice Locksmith, later venturing out as a sole trader in 1991 and founding Security Installation Services Limited. Donna Mak is our Director and Company Secretary, having been involved in the growth and development of the business since the beginning in 1991, she is well placed to answer most queries with the help of our office staff.